3.For SRE-910 and UCS E blade, though you are allowed to create more than 8 ports on Cisco Unity Connection Administration, it is recommended to create a maximum of 8 ports to avoid performance issues.

Additional Information Related to Platform-Overlay Specifications

Cisco Unity Connection Cluster

The Unity Connection cluster feature provides high-availability voice messaging with two Unity Connection servers that are configured in a cluster. In this configuration, also known as active-active high availability, a single node consists of two servers, and the number of ports depends on the server model (see Table 2). The total number of node ports is additive (meaning a single node can support up to 500 ports in the case of platform overlay 3), but the total number of users supported is applicable only to the primary server. The primary and secondary servers in a cluster must match in CPU and amount of memory, or the configuration is not supported.

If the hard disk space does not match on the two servers that you are using for a cluster, the smaller amount of disk space determines the storage capacity for each server in the cluster. This also applies if you are using one physical server and one virtual machine for the cluster.

IMAP Idle Clients

The calculations for the total number of active clients assume the use of IMAP clients that support IMAP Idle. Cisco Unified Personal Communicator 7.0 and earlier, Cisco Unified Mobility Advantage, and Cisco Unified Mobile Communicator do not support IMAP Idle. As a result, each active instance of each of these clients (that does not support IMAP Idle) that is accessing Unity Connection voice messages counts as four active clients.

Additional Platform Information

Replacing a Unity Connection Server as You Upgrade to Unity Connection 9.x

If you are replacing the Unity Connection server and the server is currently running Unity Connection 7.1(2) or earlier, you will also need Unity Connection 7.1(3) software:

Some older servers are not supported for use with Unity Connection 9.x, and an attempt to install or upgrade to Unity Connection 9.x on these older servers will fail. This means that you cannot upgrade to Unity Connection 9.x on both the old server and the new server and use the Disaster Recovery System to move data to the new server.

Connection 7.1(2) and earlier does not include the drivers required by the new servers. This means you cannot install Unity Connection 7.1(2) or earlier on a new server, move data to the new server by using the Disaster Recovery System, and then upgrade the new server to Unity Connection 9.x.

All MCS 7825 servers must contain two hard disks that are the same size and that are at least 160 GB each.

Cisco MCS 7835

Unity Connection 9.0(1) and later only: All MCS 7835 servers must contain 6 GB of RAM.

All MCS 7835 servers must contain two hard disks that are the same size and that are at least 146 GB each.

Cisco MCS 7845

Unity Connection 9.0(1) and later only: All MCS 7845 servers must contain 6 GB of RAM.

All MCS 7845 servers must contain four hard disks that are the same size and that are at least 146 GB each.

Platforms Qualified for Use with Cisco Unity Connection

Unity Connection supports upgrades from some media convergence servers shipped for previous versions of Unity Connection and Cisco Unity messaging. Table 16 through Table 29 outline the supported media convergence servers for Unity Connection 9.x as well as hardware specifications, and, where applicable, required hardware changes for Unity Connection 9.x to support the product. Where possible, Cisco product numbers are listed in the tables for hardware upgrades, as are original-equipment-manufacturer (OEM) product part numbers for direct sourcing of the equipment.

Unity Connection 9.x does not support first-generation MCS models (-I1 or -H1) or their software-only models.

Platforms Supported for Use with Cisco Unity Connection 9.x

For detailed specifications on a platform, click the link in the “Manufacturer and Model” column.

Number of Voice Ports Supported with Unity Connection Platforms

The number of voice ports supported with Cisco Unity Connection depends upon the Unity Connection platform specifications. Unity Connection supports both physical and virtual platforms of different configurations. The following table specifies the number of ports supported with the virtual platforms.

Table 5 Supported Voice Ports with Virtual Platforms

Number of processorsper Virtual Machine

RAM per Virtual Machine

Number of Voice Ports Supported per Virtual Machine

Number of Voice Ports Supported Per Cluster

1 vCPU

4 GB

24

48

2 vCPU

6 GB

100

200

4 vCPU

6 GB

150

300

7 vCPU

8 GB

250

500

The following table specifies the number of ports supported with the physical platforms.

When Cisco MCS 7825 servers contain 4 GB of RAM, the Digital Network can include up to 10,000 users.

When a Cisco MCS 7825 server contains 2 GB of RAM, the maximum number of contacts for the server is 50,000. When a Cisco MCS 7825 server contains 4 GB of RAM, the maximum number of contacts for the server is 100,000.

When Cisco MCS 7825 servers contain 4 GB of RAM, the Digital Network can include up to 10,000 users.

When a Cisco MCS 7825 server contains 2 GB of RAM, the maximum number of contacts for the server is 50,000. When a Cisco MCS 7825 server contains 4 GB of RAM, the maximum number of contacts for the server is 100,000.

When Cisco MCS 7825 servers contain 4 GB of RAM, the Digital Network can include up to 10,000 users.

When a Cisco MCS 7825 server contains 2 GB of RAM, the maximum number of contacts for the server is 50,000. When a Cisco MCS 7825 server contains 4 GB of RAM, the maximum number of contacts for the server is 100,000.

When Cisco MCS 7825 servers contain 4 GB of RAM, the Digital Network can include up to 10,000 users.

When a Cisco MCS 7825 server contains 2 GB of RAM, the maximum number of contacts for the server is 50,000. When a Cisco MCS 7825 server contains 4 GB of RAM, the maximum number of contacts for the server is 100,000.

Hardware Supported by Cisco Unity Connection SRSV 9.1(1)

This section lists the supported hardware platforms and the minimum Cisco IOS software release required to support the hardware platformCisco Unity Connection SRSV.

Table 30 Specifications for Cisco Unity Connection SRSV

Cisco Platform

Connection SRSV on SM-SRE-900-K9

Connection SRSV on SM-SRE-910-K9

UCS E 140S

UCS E140D, E140DP, E160D, and E160 DP

Cisco 2911

Cisco 2921

Cisco 2951

15.1(3)T

15.1(3)T

15.1(3)T

15.1(3)T

Cisco 3925

Cisco 3945

15.1(3)T

15.1(3)T

15.1(3)T

15.1(3)T

Cisco 3925E

Cisco 3945E

15.1(3)T

15.1(3)T

15.1(3)T

15.1(3)T

NoteA different Cisco IOS software release may be required depending on the version of Cisco Unified Communications Manager Express or Cisco Unified Survivable Remote Site Telephony (SRST) being used. For more information refer to Cisco Unified Communications Manager Express documentation available at http://www.cisco.com/en/US/products/sw/voicesw/ps4625/index.html.

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